Oceanographic Sampling: Shelagh 2017
Summary
The Shelagh is conducting opportunistic oceanographic sampling as it surveys the Gulf of St Lawrence for right whales. This document provides an overview of the preliminary CTD data.
Report last updated:
2017-08-14 10:00:08
Days with samples (n = 9):
03-Jul-2017, 04-Jul-2017, 05-Jul-2017, 08-Jul-2017, 02-Aug-2017, 08-Aug-2017, 10-Aug-2017, 11-Aug-2017, 12-Aug-2017
Sample Types:
CTD (n = 16):
Profiles of temperature, salinity, and depth made with a SBE37 CTD. These were made in advance of every tow. The CTD was also left logging during the tow to record the depth-time series of the net.Net (n = 26):
Vertical zooplankton tows (to either full or half depth) made with a 200 micron, 3/4 m diameter ring net. Samples preserved in formalin with a subsample flash frozen in liquid nitrogen [where possible]HAB (n = 2):
Filter ~2 L of surface water through 20 micron filter and preserved in formalin to assess presence of harmful algae.
Maps
Sample locations
Whale sightings
*These whale sightings were obtained from the running DFO list of sightings from a variety of sources including NOAA, DFO, and other opportunistic surveys. For more details, see the interactive sightings map here
Sampling locations and sightings
CTD data
CTD 01
CTD 02
CTD 03
CTD 04
CTD 05
CTD 06
CTD 07
CTD 08
CTD 09
CTD 10
CTD 11
CTD 12
CTD 13
CTD 14
CTD 15
CTD 16
Master data sheet
Please excuse the slightly bizarre format of the data, but I decided to organize the data in this way to keep everything (i.e. all sample types) in one place. Each CTD cast is distinguished by having ‘CTD’ in the ID column, while each biological sample solely has a number. The ‘type’ column refers to the type of sampling done, where ‘CTD’ indicates a CTD cast, ‘VRT’ is a vertical net haul, and ‘BUK’ is a bucket sample for HAB analysis. The ‘samples’ column refers to what samples were taken, where ‘Zoop’ is a bulk zooplankton sample (preserved in formalin), ‘Cryo’ is a sub-sample of zooplankton that is flash frozen in liquid nitrogen, and ‘HAB’ is a filtered surface sample. The ‘sticker_id’ column is the number of the sticker that was put on the sample bottle. Finally, the ‘comments’ column contains the identifier of the associated comment. Click on the comments tab to navigate to a comment for a particular sample.
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